Pot-press especially adapted for the extraction of cacao-butter or cacao-oil.



P. T. H A'NEL. POT PRESS ESPECIALLY ADAPTED FOR THE' EXTRACTION 0F CACAQ'BUTTER 0R CACAO OIL.

' APPLICATION FILED APR-10.1914.

1,162,353. Patented Nov. 30, 1915.

6 SHEETS-SHEET I.

F. T. H A NEL.

POT PRESS ESPlzCIALLY ADAPTED FOR THE EXTRACT ION 0F CACAO BUTTER 0R CACAO OIL. APPLICATION FILED APR. 10. 1914.

1,162,353; Patented Noi 30, 1915.

6 SHEETS-SHEET 2- P.T. HA'NEL. POT PRESS ESPECIALLY ADAPTED FOR THE EXTRACTION 0F CACA 0 BUTTER 0R .CACAO OIL.

APPLICATION FILED APR. I0, 19H.

Pathted Nov. 30, 1915.

6 SHEETS-SHEET 3.

P T. H A NEL. POT PRESS ESPECIALLY ADAPTED FOR THE-EXTRACTION 0F CACAO BUTTER 0R CAOAO OIL. APPLICATION FILED APR- 10, 1914.

1,162,353. Patented NW0, 1915.

5 SHEETS-SHEET 4- F'rgfi.

P. T. HA NEL.

POT PRESS ESPECIALLY ADAPTED FOR THE EXTRACTION 0F CACAO BUTTER 0R CACAO OIL.

' APPLICATION FI'LED ATR. I0. 1914.

1 162,353. Patented Nov. 30, 1915.

6 SHEETS- -SHEET 5' PET. H-A'NEL.

POT PRESS ESPECIALLY ADA'PTED FOR THE EXTRACTION 0F CACAO BUTTER 0R CACAO OIL.

APPLICATION FILED APR- l0| I914.

e SHEE-IS-SHEET a.

nnrrnn srarns PATENT onrron PAUL THEODOR HANEL, OF DRESDEN, GERMANY, ASSIGNOR TO LOUIS BERNHARD LEI-IMANN, OF DRESDEN', GERMANY.

POT-PRESS ESPECIALLY ADAPTED Specification of Letters Patent.

FOR THE EXTRACTION OF CACAO-BUTTER OR OACAO-OIL.

Patented Nov. 30, 1915.

Application filed April 10, 1914. Serial No. 830,908.

and residing at Dresden, in the German Empil'e, have invented new and useful Improvements in Pot-P esses Especially Adapted for the Extraction of Caca0-Butter or Cacao-Oil, of which the following is a specification.

According to the present invention, a hydranlic cacao-press of recumbent arrangement has been produced, which retains the satisfactory elements and the satisfactory method of working of, the pot-press and makes possible the recumbent arrangement primarily through direct radial charging of the individual hollow bodies by means of lateral. filling-openings provided withval-ves, As the openings for filling, which are naturally suitably disposed at the upper vertex of the hollow recumbent bodies, can be directly filled from a heated reservoir having stirring apparatus and lying above the press, the charging of the recumbent pot-press is much more easy than that of the vertical press, in which the pots must be individually filled and then .be brought to their place. l Viththe direct filling of the individual hollow bodies from without, all the difliculties of the recumbent pot-press disappear, which difficulties arose in the previously known recumbent press out of the axial supply from the interior, and one receives from each of the. completely separated charges of the single hollow bodies,

completely separated simple disk-shaped press-cakes. A further necessary feature to be considered exists therein that these separated disk-shaped press-cakes must be brought out of the press in'the most simple and time-saving manner and, as far as it is in any manner possible, by means of mechanical ways. For this purpose the pressstamp is made,- first of all, so long that it may pass completely through the hollow body and so can push the press-cakes out of the hollow body by means of its further In order to obtain this forward movement. pushing out with all the elements simultaneously, in a mechanical manner, the corresponding mechanical arrangements are so made that the entire column is first pushed forward in an empty space, until after the striking of its end against the abutment,

whereupon the pressing follows, thereafter to withdraw again the shortened column somewhat, and then fasten the hollow bodies to their places, and finally through renewed advances of the hydraulic piston cause the slmultaneous pushing out of the press-cakes. In the accompanying drawings, Figure 1 is an elevation, with a partial longitudinal section, Fig. 2 is a vertical cross-section, Fig. 3 is a plan-view, with a partial longitudinal section, Fig. at is a front-viewof a press-stamp in cross-section looking through the parts 'lying longitudinally, Figs. to 7 represent the columns of the elements in longitudinal section, F1g. 5 showing the condition when making ready before the charging, Fig. 6, the condition of the completed pressing, and Fig. 7. the condition after the pushing out of the press-cakes out of the hollow bodies, Figs. 8 to 11 show one embodiment of the filling-Valves, and Figs. 8

and 11 show sections along lines AB and C D respectively of Fig. 10. Fig. 10 is a plan-view with cross-section along the line EF of Fig. 11. while Fig. 9 is a section along line G'H of Fig-8. Finally, in Fig. 12 is shown a pair of elements in longitudinal section.

Similar reference characters indicate corresponding parts throughout the different figures of the drawings.

Referring to the drawings, it will be seen that the press, whose axis lies suitably somewhat inclined, for the running 0H of the pressed out cacao-butter'and for the more easy insertion of the filter-plates, consists of two strong head-pieces 2 and 3 united by an iron bar 1, the first of which head-pieces forms the working cylinder for the hy draulic piston +1. With this piston is coupled, by means of a piston-rod a smaller auxiliary piston 6 which'moves in the cylinder 7, and which, for the purpose of saving time, performs the initial pushing forward of the column in the empty space or path of free movement, the drawing back of the column after the pressing, the renewed driving forward of the column in the pushing out of the press-cakes, and the final drawing back of the column in the position according to Fig. 5. The main piston 4; thus has only the performance of the real pressing work.

I On the bar 1 the press-stagpps 9 are guided with the plates 8, clearly shown in Fig. 4, and which press-stamps 9 or pressure-heads are hollow bodies suitably cast and heated .7

a canal system for leading away the fat, in

the same manner'like the plates 10. The press-stamps, as also the plates 10 and 11, are of such a length that they can completely reach through the hollow bodies (see Fig. 7). The first press-stamp 9, which is, found next to the piston 4, is united with the piston. v,

The ring-shaped hollow bodies 12 (pots) lying between two press-stamps 9 extend with their lateral extensions 13 'to the rods 14 which are, on the one hand, fastenedto the plate 8 of the first press-stamp, and, on the other hand, are shiftable in the headpiece 3 and clasp the rods 16 by means of I slotted eyes 15 adjustable by screws, which rods 16 are revoluble in the head-piece 3 and on which the plates 8 may be freely shifted. The rods 16 have an elliptical cross-section, with a small difi'erence between short and long axes. This cross-section shape also corresponds to the boring of the eyes 15. If the long axes of both elliptical profiles come together the hollow bodies are freely shiftable on the rods 16, whereas a turning of the rods 16 causes a firm gripping.

By means of the revoluble screws 17 in the plates 8 and the unrevoluble nuts 18 in the borings of the forward continuations 13, every hollow body can be closely pressed against the next following press-stamp, with the interposition of a filter-plate 19. The simultaneous tightening and loosening of the two screws 17 which form a pair of elements, follows through an obliquely-placed shaft 20, which by means of a worm 21 engages the worm-gear wheel 22.

A second filter-plate 23, which has such a diameter that it can only be brought into the hollow body by means of some force, lies on the plate 11. \Vith the last hollow body (at the left), instead of a press-stamp, a closing plate 2-1 operates therewith. In order to couple the shortenedlcohnnn by means of the plate 21 with the'rods 14 on the drawing back, the rods 11 are provided with grooyes 25 in that region in which, depending on the filling and degree of compression at the end of the pressing, the plate 24 finds itself, in which grooves a movable connector 28 can grasp, which connectors 28 are guided on the plate 24 and are movable vertex the following pair of elements by means of the obliquely-inclined shaft 26,

a stirring means, which is not shown inthe drawings, from which the cacao mass is led through the exit-passages 32 and the conducting groovesl33, closed by the valve 31, to the filling0penings 34 arranged -on the of the hollow bodies. The fillingopenings are capable of being closed by valy es hereinafter to be described.

After the removal of the press-cake from the first element and the insertion of the filter-plates 19 and 23, the column built up by the elements is in the condition shown in F 1g. 5, Heretofore, in order to render this conditlon possible, the nuts 18 were screwed back on the screws 17 to the left. For making ready for the filling, the nuts first enter into the bottom-of the borings in the forward extensions 13 (after the successive taking out of the press-cakes), and thereby firmly and tightly draw the following press stamp to the hollow body lying before it. Thls takes place successively, as the insertion of the filter-plates and the drawing of the press-stamps to the left begins, whereby are therebv drawn after it by means of their screws, respect1vely, so that the plates 10 and.11 grip the drawn-1n periphery on the right opening of every hollow body. As the above-ment oned procedure continues, that is, the next press-cake is taken-out; new filter-plates are inserted and the press-stamp is drawn, the

the columns forward in the empty path or.

path of free movement (in every case with the pressure needed for the inertia and frictional resistance), until the closing plate 2% is laid against the head-piece 3. Thereupon themain piston is thrown into engagement and this causes through the self-shortening of the columns the pressing under a pressure of from 150 to 400 atmospheres (measured on the manometer of the force-pinup). The fat is pressed out through the sieve-plates 11 and through the canals in the plates 10 and 10 and runs out on the low-lying edges. re

spectirely through the openings in the 1101- low bodies, visible in Fig. 1, to be gathered up by the pipe 35 and conducted to a col- 'After the completelccting container 36. pressing, the condition of the column is that shown in Fig. 6. Thereupon the'connector 28 is allowed to grasp the grooves 25, and

' placing is accurately limited, in that the cross I of during thefilling.

sists of cylindrical disk 38, well fitted to the the completed shortened columns can now be drawn back a little in order to gain room for-the forward push of the stamps for the a purpose of pushing out the press-cakes. Now the nuts 18 are screwed back on common screws 11', and the hollow bodies are fastened to their present position by turning the rod 16. If .now, after the lifting out of the connector 28, the members ofthecol umn that have remained movable, that is, the press-stamp with the press-cakes lying therebetween, are pushed through the stationary hollow bodies, the representation shownin Fig. 7 appears. The press-cakes havecomeout of the hollow bodies and are suspended in the air, together with the filterplates gripped by the'stamps. Now after the removal of the gripping of. the hollow 'bodies (turning back of the rod 16 the shortened column can be withdrawn by means of the auxiliary piston, whereby the condition of egress (Fig. 5) again steps in.

bore of the filling-opening, in whose periphery a packing ring is suitably placed. An oblique surface on the upper edge ofthe packing ring allows it to be pressed together, when the valve sunk in body 12 during the fillin'gis agai raised in the position shown in the drawings for the purposes of shutting it off. This higher of ribs lO ofthe valve is drawn againstthe bridge '41 by. means of the spindle 42. The, valve, which is led by the non-revoluble spring wedge 43, was in this position at the and then went precisely flush with thecylindrical wall-surfaces of the hollow body.

One of the ribs is built up. as a double'rib 44-44 and glides up and down on thebridge 45"cast within the filling-pipe, so that both'individual ribs together with the head-side of the bridge create a canaL Through this canal. the air can leave the 'hollow body during the filling through the path shown in Fig. 5, by means of the dotted arrow.

I have shown an embodiment of my ,in-

vention, but changes may be made therein without de )arting from the spirit of the same as de ned in the appended claims, and

Itlhe hollow the cacao press may be used for any similar purpose.

I claim: 1. In a hydrauliccacao-press, ring-shaped hollow bodies for containing the charge of cacao, stamps operating in said hollowbodies to compress the cacao, openings in said hollow bodies to admit the cacao, and

means for moving said stamps relatively to said hollow bodies after the compression has taken place, said stamps being of suflicient length with respect to said hollow bodies. to completely push the compressed cakes out of said hollow bodies.-

2. In a hydraulic cacao-press, a series of movable ring -shaped bodies for holding the charge'of cacao, and located along a common axis, a series of movable stamps intermediate said hollow bodies, openings in said hollow bodies for filling them, means for closing said openings, means for connecting and disconnecting said hollow bodies to and from said stamps, said hollow bodies when connected to said stamps being tightly pressed against them, whereby said hollow bodies and said stamps form a column, a

mechanism for actuating said stamps rela .tively to said hollow bodies to compress the cacao, and means for maintaining said hollow bodies stationary, whereby, when said stampsare disconnected from said hollow bodies and actuated while said hollow bodies are maintained stationary, the contents of said hollow bodies are bodily ejectedtherefrom.

3. In a hydraulic cacao-press, the combination of a series of movable ring-shaped bodies forholding the charge of cacao, openings in saidhollow bodies for filling them,

means for closing said openings, a series of movable stamps intermediate said hollow bodies, means for actuating said stamps, meanslfor connecting and disconnecting said stampsfitoand from their adjacent hollow -.bodies,- said stamps being tightly pressed ;";against said hollowbodies when connected .zthem a turning oif of the hollow body 12, so that the lower side of the valve-disk was turned oil? with it in the manner-visible i'n Figsll,

nd. means for actuating said stamps- 3 hydraulic cacao-press movable bodies to compress the cacao, means for f.-maintaining said 'movable hollow bodies fixed, and means forloperating said stamps "relatively to said hollow bodies, and while 'said hollow bodies are fixed, the length of said stamps being sufficient, after "full compression and after the said hollow bodies have been fixed. to push the presscakes out w of said hollow bodies, by further relative movement. i

5. In a hydraulic cacao-press, a series of hollow bodies for containingthe charge ol cacao, and moving along a common axis, whereby they form a column, stamp Ope ating in said hollow bodies to compress the cacao, means for first moving said hollow bodies and stamps in unison, means for then holding. said l10ll0W bodies stationary andstamps in unison, and means forthen holdwing said hollow bodies stationary and moving said stamps forwardly and relatively thereto, whereby the press-cakes are pushed out o'f'said hollow bodies.

6. In a hydraulic cacao-press, a main piston, an auxiliarypiston, a series of movable hollow ring-shaped bodies for containing the charge of cacao, said hollow bodies being arranged along'a common axis,

a series of stampsintermediate said hollow bodies and arranged along the same cominon axis, means for connecting and discon necting said hollow. bodies to and from the adjacent stamps, a stationary head-piece,

means actuated by said auxiliary piston for moving said hollow bodies and stamps in unison until they meet -said head-piece, said main piston then operating to compress said column, means operated by said auxiliary pistenfor moving back said column of hollow bodies and stamps in unison, means for holding said hollow bodies stationary, and means operated by said auxiliary piston for then moving said stamps, after the disconnection thereof from said hollow bodies relatively to said hollow bodies, whereby the Copies of-this patentmay be obtained for five cents each, by addressing the Commissioner of Patents;

compressed contents of said hollow-bodies are removed therefrom.

7. In a hydraulic cacao-press, the combination of ring-shaped hollo w bodies arranged along a common axis and having side openings therein, 'nrovable stamps intermediate said ring-shaped bodies and arranged along the said common axis, valves.

for said openings, said valves having rigid means connected thereto to accurately limit thelr movement when closed, so that their interlor surfaces, when closed, are mainfaces of said cylindrical bodies.

tained precisely flush With the interior su r- 8. In a hydraulic cacao-press, the combination of hollow ring-shaped. bodies arranged along a common axis and havingside openings therein, movable stamps intermediate said openings and arranged along the. said common axis, disk valves for Said openings, said valves being moved within said hollow bodies to clear said openings, and rigid means connected thereto to accurately limit their movement when closed, so that the interior surfaces of said valves, when closed, areprecisely flush with the interior surfaces of said hollow bodies.

In testimony-that I claim the foregoing as my invention, 1 have signed my name in presence of two subscribing witnesses.

PAUL THEODOR HiiNEL. Witnesses:

GUSTAV MI'iLLER, L. A..BERGHOLZ.

Washington, 1). 0. 

